Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Experiments & Modifications



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 01-17-2010, 09:04 PM #1
awlego's Avatar
Class 1M Laser
 
Join Date: Oct 2009
Location: Pasadena, CA
Posts: 160
Rep Power: 20
awlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud of
awlego awlego is offline
Class 1M Laser
awlego's Avatar
 
Join Date: Oct 2009
Location: Pasadena, CA
Posts: 160
Rep Power: 20
awlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud of
Lightbulb 2 drivers for 1 diode.

Has anyone ever tried to use to drivers on one diode? The set up would have 1 driver with a pot in a low range for an RGV build, and the other driver would be a fixed value for high power use. A switch would then let the user choose between the two drivers.

Attached is a possible setup.

Tell me what you guys think.

-Awlego
Attached Thumbnails
2 drivers for 1 diode.-duel-driver-laser.jpeg  


__________________
RGB Drivers for sale!!
http://laserpointerforums.com/f39/aw...ved-65086.html

My lasers:
5mW red key chain pointer
5mW green pointer
20mW green in custom host.
100mW green in matching custom host.

PHR running 135mA in a matching custom host.
CUSTOM ADJUSTABLE RGV - PHR @ 37-125mA, green module @ 0-300mA (about 20mW output), and a LOC @ 42-300mA

And the pride of my collection: a homemade RGB system with a homemade full color driver
awlego is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 01-17-2010, 09:10 PM #2
FireMyLaser's Avatar
Class 3B Laser
 
Join Date: Jan 2008
Location: Sweden
Posts: 3,052
Rep Power: 567
FireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond repute
Send a message via MSN to FireMyLaser
FireMyLaser FireMyLaser is online now
Class 3B Laser
FireMyLaser's Avatar
 
Join Date: Jan 2008
Location: Sweden
Posts: 3,052
Rep Power: 567
FireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond reputeFireMyLaser has a reputation beyond repute
Send a message via MSN to FireMyLaser
Default Re: 2 drivers for 1 diode.

You only need one driver (lm317). Have one resistor of low power and one resistor for high power, and use a on-on switch.
__________________
Niko likes cereal.
FireMyLaser is online now   Reply With Quote
Old 01-17-2010, 09:10 PM #3
charliebruce's Avatar
Class 3R Laser
 
Join Date: Nov 2008
Location: London, UK
Posts: 1,550
Rep Power: 123
charliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond repute
Send a message via MSN to charliebruce
charliebruce charliebruce is offline
Class 3R Laser
charliebruce's Avatar
 
Join Date: Nov 2008
Location: London, UK
Posts: 1,550
Rep Power: 123
charliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond reputecharliebruce has a reputation beyond repute
Send a message via MSN to charliebruce
Default Re: 2 drivers for 1 diode.

Switches like that near the LD mean the capacitors will be charged and quite possibly discharge through the laser diode. Not a good idea. A refiniement of this idea would be better, having 2 drivers in parallel - but one with its connection to +v severed, until the switch is flicked.

EDIT: or a switch varying the resistance between Adj and Out as FML said, even simpler.
charliebruce is offline   Reply With Quote
Old 01-17-2010, 09:14 PM #4
awlego's Avatar
Class 1M Laser
 
Join Date: Oct 2009
Location: Pasadena, CA
Posts: 160
Rep Power: 20
awlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud of
awlego awlego is offline
Class 1M Laser
awlego's Avatar
 
Join Date: Oct 2009
Location: Pasadena, CA
Posts: 160
Rep Power: 20
awlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud ofawlego has much to be proud of
Default Re: 2 drivers for 1 diode.

That's a good idea FireMyLaser! Thanks for the feedback! Simple and effective.
__________________
RGB Drivers for sale!!
http://laserpointerforums.com/f39/aw...ved-65086.html

My lasers:
5mW red key chain pointer
5mW green pointer
20mW green in custom host.
100mW green in matching custom host.

PHR running 135mA in a matching custom host.
CUSTOM ADJUSTABLE RGV - PHR @ 37-125mA, green module @ 0-300mA (about 20mW output), and a LOC @ 42-300mA

And the pride of my collection: a homemade RGB system with a homemade full color driver
awlego is offline   Reply With Quote
Reply

Tags
double, driver, experiment





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 05:59 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC